Alienware keyboard shift key hard to press

I have an SK-8165 Alienware keyboard. The right shift key has become hard to press down, and will sometimes result in letters being wrongly lowercase, and other problems of course. I have tried removing the key and cleaning under it and resetting it, with no luck.

You might think one bad key isn't a big problem, but it is. Especially with such an important key. It's annoying enough to make me want a new keyboard.

Is there anything I can try doing to fix this?

Thanks in advance.